Firewired, what's shameful about owning and liking "Bring it On"? I have the DVD on "loan" and I don't think I'm ever giving it back (just kidding Franch)! The movie is like industrial-strength Prozac on film. My friends even used it everyday to perk themselves up when they were rotating in one of the most depressing spots on earth, the Internal Medicine wards of the Philippine General Hospital (they'd play the VCD using the ward computer).
I think I've seen it around 4 times too (with different companions each time). The thing is, this movie really stands up to repeat viewing. It's written and directed tightly, with nary a wasted scene or beat. The cast is supernaturally appealing. The cheerleading gymnastics never fail to impress. It's no big surprise that among some (less stodgy) critics' circles this movie was even considered the best of 2000.
I agree with you on Showgirls too. My favorite scene is where Nomi shoves the fries in her friend's face and cries "You don't know crap!". Very "Vilma Santos in Dolzura Cortes".
As for owning Salo, that certainly isn't shameful. It's admirable!